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BOSTON MARATHON 2023

Juan Castro

Bib: 5534•M

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 11%
Gender (Male)
#0 / 15176
Top 19%
Division (M18-39)
#0 / 5285
Top 40%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:29
Rank: #2816
Start → 5K
20:29 | 6:36/mi
10K· 6.21 mi
40:56
Rank: #3069 (-253)
5K → 10K
20:27 | 6:35/mi
15K· 9.32 mi
1:01:27
Rank: #3146 (-77)
10K → 15K
20:31 | 6:36/mi
20K· 12.43 mi
1:22:15
Rank: #3198 (-52)
15K → 20K
20:48 | 6:42/mi
Half· 13.11 mi
1:26:45
Rank: #3214 (-16)
20K → Half
4:30 | 6:36/mi
25K· 15.53 mi
1:43:01
Rank: #3224 (-10)
Half → 25K
16:16 | 6:43/mi
30K· 18.64 mi
2:04:27
Rank: #3248 (-24)
25K → 30K
21:26 | 6:54/mi
20M
2:13:52
Rank: #3236 (+12)
30K → 20M
9:25 | 6:56/mi
21M
2:21:10
Rank: #3236
20M → 21M
7:18 | 7:18/mi
35K· 21.75 mi
2:26:23
Rank: #3303 (-67)
21M → 35K
5:13 | 6:58/mi
23M
2:35:02
Rank: #3273 (+30)
35K → 23M
8:39 | 6:55/mi
24M
2:41:36
Rank: #3200 (+73)
23M → 24M
6:34 | 6:34/mi
40K· 24.85 mi
2:47:19
Rank: #3133 (+67)
24M → 40K
5:43 | 6:41/mi
25.2M
2:49:49
Rank: #3106 (+27)
40K → 25.2M
2:30 | 7:15/mi
Finish· 26.22 mi
2:56:22
Rank: #3020 (+86)
25.2M → Finish
6:33 | 6:26/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:45
Pace6:37 /mi
2nd Half
Distance13.11 mi
Time1:29:37
Pace6:50 /mi
📊Positive Split: 3.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:0020:296:3620:29
6:36
-
10K
6.21 mi10:43:2740:566:3520:27
6:35
-0:01
15K
9.32 mi11:03:581:01:276:3620:31
6:36
+0:01
20K
12.43 mi11:24:461:22:156:3720:48
6:42
+0:06
Half
13.11 mi11:29:161:26:456:374:30
6:36
-0:06
25K
15.53 mi11:45:321:43:016:3816:16
6:43
+0:07
30K
18.64 mi12:06:582:04:276:4121:26
6:54
+0:11
20M
20.00 mi12:16:232:13:526:429:25
6:56
+0:02
21M
21.00 mi12:23:412:21:106:437:18
7:18
+0:22
35K
21.75 mi12:28:542:26:236:445:13
6:58
-0:20
23M
23.00 mi12:37:332:35:026:448:39
6:55
-0:03
24M
24.00 mi12:44:072:41:366:446:34
6:34
-0:21
40K
24.85 mi12:49:502:47:196:445:43
6:41
+0:07
25.2M
25.20 mi12:52:202:49:496:442:30
7:15
+0:34
Finish
26.22 mi12:58:532:56:226:446:33
6:26
-0:49

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

6:26 /mi

Average Pace

6:44 /mi

Slowest Pace

7:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:46:34

94% of race

Time at Steady Pace

9:48

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:44 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:23:0020:296:3620:29
6:36
#2816
10K
6.21 mi10:43:2740:566:3520:27
6:35
#3069
15K
9.32 mi11:03:581:01:276:3620:31
6:36
#3146
20K
12.43 mi11:24:461:22:156:3720:48
6:42
#3198
Half
13.11 mi11:29:161:26:456:374:30
6:36
#3214
25K
15.53 mi11:45:321:43:016:3816:16
6:43
#3224
30K
18.64 mi12:06:582:04:276:4121:26
6:54
#3248
20M
20.00 mi12:16:232:13:526:429:25
6:56
#3236
21M
21.00 mi12:23:412:21:106:437:18
7:18
#3236
35K
21.75 mi12:28:542:26:236:445:13
6:58
#3303
23M
23.00 mi12:37:332:35:026:448:39
6:55
#3273
24M
24.00 mi12:44:072:41:366:446:34
6:34
#3200
40K
24.85 mi12:49:502:47:196:445:43
6:41
#3133
25.2M
25.20 mi12:52:202:49:496:442:30
7:15
#3106
Finish
26.22 mi12:58:532:56:226:446:33
6:26
#3020
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2816267926793319(Top 12%)3149(Top 21%)3149(Top 60%)
10K6.21 mi3.10 mi3069-2532922-2432922-2433355(Top 13%)3192(Top 21%)3192(Top 60%)
15K9.32 mi3.11 mi3146-772996-742996-743319(Top 12%)3149(Top 21%)3149(Top 60%)
20K12.43 mi3.11 mi3198-523044-483044-483529(Top 13%)3338(Top 22%)3338(Top 63%)
Half13.11 mi0.68 mi3214-163059-153059-153368(Top 13%)3199(Top 21%)3199(Top 61%)
25K15.53 mi2.42 mi3224-103072-133072-133409(Top 13%)3230(Top 21%)3230(Top 61%)
30K18.64 mi3.11 mi3248-243090-183090-183640(Top 14%)3419(Top 23%)3419(Top 65%)
20M20.00 mi1.36 mi3236+123073+173073+173573(Top 13%)3332(Top 22%)3332(Top 63%)
21M21.00 mi1.00 mi32363068+53068+53583(Top 13%)3323(Top 22%)3323(Top 63%)
35K21.75 mi0.75 mi3303-673128-603128-605128(Top 19%)4579(Top 30%)4579(Top 87%)
23M23.00 mi1.25 mi3273+303099+293099+293263(Top 12%)3032(Top 20%)3032(Top 57%)
24M24.00 mi1.00 mi3200+733030+693030+692394(Top 9%)2237(Top 15%)2237(Top 42%)
40K24.85 mi0.85 mi3133+672969+612969+612291(Top 9%)2129(Top 14%)2129(Top 40%)
25.2M25.20 mi0.35 mi3106+272941+282941+282703(Top 10%)2489(Top 16%)2489(Top 47%)
Finish26.22 mi1.02 mi3020+862860+812860+812139(Top 8%)1984(Top 13%)1984(Top 38%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21stories
+97ft-345ft

Overall

3319

Males

3149

M18-39

3149

5K→10K

3.1 - 6.2 mi

Top 13%
×5stories
+79ft-138ft

Overall

3355

Males

3192

M18-39

3192

10K→15K

6.2 - 9.3 mi

Top 12%
×3stories
+67ft-78ft

Overall

3319

Males

3149

M18-39

3149

15K→20K

9.3 - 12.4 mi

Top 13%
×5stories
+106ft-86ft

Overall

3529

Males

3338

M18-39

3338

20K→Half

12.4 - 13.1 mi

Top 13%
×2stories
+19ft-37ft

Overall

3368

Males

3199

M18-39

3199

Half→25K

13.1 - 15.5 mi

Top 13%
×4stories
+66ft-88ft

Overall

3409

Males

3230

M18-39

3230

25K→30K

15.5 - 18.6 mi

Top 14%
×9stories
+181ft-148ft

Overall

3640

Males

3419

M18-39

3419

30K→20M

18.6 - 20.0 mi

Top 13%
×5stories
+64ft-50ft

Overall

3573

Males

3332

M18-39

3332

20M→21M

20.0 - 21.0 mi

Top 13%
×8stories
+106ft-24ft

Overall

3583

Males

3323

M18-39

3323

21M→35K

21.0 - 21.8 mi

Top 19%
×7stories
+17ft-86ft

Overall

5128

Males

4579

M18-39

4579

35K→23M

21.8 - 23.0 mi

Top 12%
×5stories
+23ft-63ft

Overall

3263

Males

3032

M18-39

3032

23M→24M

23.0 - 24.0 mi

Top 9%
×6stories
+12ft-82ft

Overall

2394

Males

2237

M18-39

2237

24M→40K

24.0 - 24.9 mi

Top 9%
×1story
+6ft-20ft

Overall

2291

Males

2129

M18-39

2129

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2703

Males

2489

M18-39

2489

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2139

Males

1984

M18-39

1984

Passing Analysis

Category:
Athletes Passed
842
Passed By
1046
Net Change
-204
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2816
5K → 10K73326-253#2816#3069
10K → 15K55132-77#3069#3146
15K → 20K76128-52#3146#3198
20K → Half1329-16#3198#3214
Half → 25K5565-10#3214#3224
25K → 30K89113-24#3224#3248
30K → 20M6654+12#3248#3236
20M → 21M43430#3236#3236
21M → 35K1683-67#3236#3303
35K → 23M6535+30#3303#3273
23M → 24M818+73#3273#3200
24M → 40K747+67#3200#3133
40K → 25.2M369+27#3133#3106
25.2M → Finish10014+86#3106#3020
TOTALS8421046-204
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing